No exceptions

No more people will be added till the month ends

I think most of the people who want to switch are coming from Primedice, which ends right in the middle of the month xD you may want to consider letting people from PD have a chance to switch over sometime.
I think this would be unlikely. If someone wanted to leave PD they could have done so before this campaign filled up. Someone could have given up their earnings from the PD campaign that they earned so far that month in exchange for a higher potential payment per post.